Leila and jo are two of the partners in a business. leila makes $ 3 in profits for every $4 that jo makes. if their total profit on the first item sold is $105,how much profit does leila make?

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .